Light-emitting device

Abstract

A light-emitting device ( 10 ) includes a light-transmitting first base material ( 210 ), a light-transmitting second base material ( 220 ), and a plurality of light-emitting units ( 140 ). The light-emitting units ( 140 ) are located between the first base material ( 210 ) and the second base material ( 220 ). The light-emitting units ( 140 ) emit light having a peak at a first wavelength. In addition, the light-emitting device ( 10 ) includes a light-transmitting region located between the plurality of light-emitting units ( 140 ). The second base material ( 220 ) includes an optical function layer ( 170 ). The optical function layer ( 170 ) is a layer which particularly reflects light of the first wavelength.

1 . A light-emitting device comprising:
 a plurality of light-emitting units located between a light-transmitting first base material and a light-transmitting second base material, the light-emitting units emitting light having a peak at a first wavelength; and   a light-transmitting region located between the plurality of light-emitting units,   wherein the second base material comprises a reflecting layer, and   wherein the reflecting layer has a higher light reflectance at the first wavelength than an average reflectance within a wavelength range of equal to or higher than 400 nm and equal to or lower than 700 nm.   
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . The light-emitting device according to  claim 1 .
 wherein the light-emitting unit comprises a light-transmitting first electrode, a light-shielding second electrode, and an organic layer located between the first electrode and the second electrode, and   wherein the second electrode is located on a side of the first electrode opposite to the first base material.   
     
     
         6 . The light-emitting device according to  claim 5 ,
 wherein the light-transmitting region is a region that does not overlap the second electrode when viewed from a direction perpendicular to the first base material.   
     
     
         7 . The light-emitting device according to  claim 1 ,
 wherein the reflecting layer comprises a laminated film having a plurality of dielectric films that are laminated, or a metal film.   
     
     
         8 . The light-emitting device according to  claim 7 ,
 wherein the laminated film comprises an inorganic material.   
     
     
         9 . The light-emitting device according to  claim 1 ,
 wherein the reflecting layer is in contact with the light-emitting unit.   
     
     
         10 . The light-emitting device according to  claim 1 ,
 wherein an average light transmittance of the reflecting layer is equal to or greater than 50% with respect to light within a wavelength range between two wavelengths each having one fifth of the intensity of the peak intensity at the peak as upper and lower limits.   
     
     
         11 . The light-emitting device according to  claim 1 ,
 wherein the reflecting layer is formed in a region overlapping the light-transmitting region when viewed from a direction perpendicular to the first base material.   
     
     
         12 . The light-emitting device according to  claim 1 ,
 wherein the second base material comprises a sealing film that covers the light-emitting unit, the sealing film being in contact with the light-emitting unit, and   wherein the sealing film is the reflecting layer.   
     
     
         13 . A light-emitting device comprising:
 a plurality of light-emitting units located between a light-transmitting base material and a light-transmitting covering layer, the light-emitting units emitting light having a peak at a first wavelength; and   a light-transmitting region located between the plurality of light-emitting units,   wherein the covering layer comprises a reflecting layer, and   wherein the reflecting layer has a higher light reflectance at the first wavelength than an average reflectance within a wavelength range of equal to or higher than 400 nm and equal to or lower than 700 nm.   
     
     
         14 . (canceled) 
     
     
         15 . (canceled) 
     
     
         16 . (canceled)